Cita APA (7th ed.)

Ridler, G., & Hoppe-Ritter, M. (2006). Marcello Morandini: Bianco e nero / Museum Ritter, Sammlung Marli Hoppe-Ritter. Museum Ritter.

Cita Chicago (17th ed.)

Ridler, Gerda, i Marli Hoppe-Ritter. Marcello Morandini: Bianco E Nero / Museum Ritter, Sammlung Marli Hoppe-Ritter. Waldenbuch: Museum Ritter, 2006.

Cita MLA (8th ed.)

Ridler, Gerda, i Marli Hoppe-Ritter. Marcello Morandini: Bianco E Nero / Museum Ritter, Sammlung Marli Hoppe-Ritter. Museum Ritter, 2006.